| H. van der Vorst, (1992), Lecture notes on iterative methods. Mathematical Institute, University of Utrecht, The Netherlands. |
....for K i (A; r (0) K i (A; r (0) Spanr (0) Ar (0) A i r (0) 2:3) Also, the fr (0) r (1) r (i) g are orthogonal as long as the exact solution has not been found. This orthogonal basis satisfies the following 3 term recurence (for example see (van der Vorst (1992)) ff (j 1) r (j 1) Ar (j) Gamma fi (j) r (j) Gamma fl (j) r (j Gamma1) or Ar (j) ff (j 1) r (j 1) fi (j) r (j) fl (j) r (j Gamma1) 2:4) Let fr (0) r (0) r (0) g be the columns of a matrix R (i) and from 2.4 we get: AR (i) R (i) ....
H. van der Vorst, (1992), Lecture notes on iterative methods. Mathematical Institute, University of Utrecht, The Netherlands.
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